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Class 374/171 - With digital linearizing circuitry


Subclass of Class 374 - Thermal measuring and testing
Definition: Subject matter having electrical pulse or digital processing
No. of patents: 63
Last issue date: 05/29/2012


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NumberTitleIssue Date
8186878System and method for providing temperature data from a memory device having a temperature sensor
A circuit and method for providing temperature data indicative of a temperature measured by a temperature sensor. The circuit is coupled to the temperature sensor and configured to identify for a coarse temperature range one of a plurality of fine temperature ranges...
05/29/2012
7677796System and method for providing temperature data from a memory device having a temperature sensor
A circuit and method for providing temperature data indicative of a temperature measured by a temperature sensor. The circuit is coupled to the temperature sensor and configured to identify for a coarse temperature range one of a plurality of fine temperature ranges...
03/16/2010
7455452Temperature sensor capable of controlling sensing temperature
A temperature sensor includes a reference voltage generator, a sensing temperature controller and a first differential amplifier. The reference voltage generator generates a reference voltage having a first slope that varies in accordance with variations of a periph...
11/25/2008
7441949System and method for providing temperature data from a memory device having a temperature sensor
A circuit and method for providing temperature data indicative of a temperature measured by a temperature sensor. The circuit is coupled to the temperature sensor and configured to identify for a coarse temperature range one of a plurality of fine temperature ranges...
10/28/2008
7433790Automatic reference voltage trimming technique
In one set of embodiments, trimming of a reference, which may be a bandgap reference and which is configured on an integrated circuit, may be controlled by an algorithm executed by logic circuitry also configured on the integrated circuit. The bandgap reference may ...
10/07/2008
7421850Refrigeration system and method of operating the same
A refrigeration system including an evaporator, a suction header in fluid communication with the evaporator, a compressor in fluid communication with the suction header, and a condenser in fluid communication with the compressor and the evaporator. The refrigeration...
09/09/2008
7413343Apparatus for determining a temperature sensing element
An apparatus and method measure a temperature of a temperature sensing element having a temperature dependent resistance based on a ratio of discharge times of a capacitor through a reference resistance and through the combination of the reference resistance in para...
08/19/2008
7331708Frequency ratio digitizing temperature sensor with linearity correction
A frequency ratio digitizing temperature sensor for generating a linearity-corrected temperature output signal includes an input generation circuit receiving a PTAT current and a CTAT current and a frequency ratio ADC including data and reference oscillators. The in...
02/19/2008
7259686Two wire temperature transmitter
A thermoelectric connector module (C) is disclosed which comprises input (2) and output (1E) connectors and contains signal conditioning circuitry (1C). The input connectors (2) are interfaced with a hand-held detector (7), and the...
08/21/2007
7250777Method and device for measuring resistance
A device for measuring a resistance includes a comparator. A D-type flip-flop has its D input connected to the output of the comparator and its latch input connected for receiving a pulse signal at a fixed pulse repetition rate. A reference voltage source is connect...
07/31/2007
7168853Digital measuring system and method for integrated circuit chip operating parameters
This invention relates to digitally measuring operating parameters, for example, temperature, within a semiconductor chip and making those measurements internally available to hardware, firmware, and software. ...
01/30/2007
7144152Apparatus for thermal management of multiple core microprocessors
An apparatus for managing the temperature of an integrated circuit having a multiple core microprocessor is described. Specifically, thermal sensors are placed at potential hot spots throughout each microprocessor core. A thermal management unit monitors the thermal...
12/05/2006
7104684On-chip digital thermometer to sense and measure device temperatures
A system and method for sensing the temperature of a device. This includes the establishment of a programmable current from an on-chip source, which in turn is used to produce a temperature dependent voltage from a temperature dependent resistive device. The tempera...
09/12/2006
7093975Semiconductor integrated circuit with simply configured temperature detection circuit
A clock divider circuit outputs a divided clock. A delay circuit is formed of at least one inverter to delay the divided clock to output a delayed, divided clock. An EXOR circuit receives the divided clock and the delayed, divided clock. A pulse width measurement ci...
08/22/2006
7066643Radio frequency temperature sensor and method of calibrating temperature therefor
A radio frequency temperature sensor and a method of calibration temperature therefor are disclosed. An active radio frequency temperature sensor including a ring oscillator, a memory, a frequency counter, a radio frequency transmission interface and a micro-control...
06/27/2006
7048438Solid state temperature measuring device and method
A method and system for automated temperature measurement is described. The system includes a programmable logic controller, a temperature measurement diode, an analog-to-digital converter coupled to the diode and the programmable logic controller, a current source ...
05/23/2006
7033072Temperature sensor
A temperature sensor comprises (a) a first voltage generating circuit that generates and outputs a first voltage having a positive or negative temperature coefficient in proportion to the absolute temperature; (b) a second voltage generating circuit that generates a...
04/25/2006
6962436Digitizing temperature measurement system and method of operation
A digitizing temperature measurement system for providing a digital temperature measurement includes an excitation source for providing switched excitation currents to two or three temperature sensing elements and an ADC circuit including a charge-balancing modulato...
11/08/2005
6956411Constant Rswitch circuit with low distortion and reduction of pedestal errors
A low distortion, high frequency switch circuit for selectively coupling an input voltage terminal to an output voltage terminal includes a switching device coupled to the input voltage terminal and the output voltage terminal, a charge storage device, and a first, ...
10/18/2005
6914764On-chip thermal sensing circuit
An on-chip thermal sensing circuit is disclosed. The thermal sensing circuit including a detection circuit located on an integrated circuit (IC) for detecting a local temperature of the IC. The output of the thermal sensor has a frequency that is directly related to...
07/05/2005
6908224Temperature sensor pre-calibration method and apparatus
A centrifuge temperature pre-calibration apparatus including a memory storage device having correction coefficients for temperature, a controller, an un-calibrated temperature sensor and a calibrated temperature display device connected to a computer which based on ...
06/21/2005
6893154Integrated temperature sensor
An apparatus and method are provided for sensing a physical stimulus of an integrated circuit. The apparatus and method allow for accurate die temperature measurements of the integrated circuit and are able to provide a highly accurate die temperature measurement wi...
05/17/2005
6874933Apparatus for digital temperature measurement in an integrated circuit
A circuit for measuring temperature with all digital components in an integrated circuit. During manufacture, the number of clock period cycles during a known period of time at a predetermined temperature is stored in non-volatile memory. Later, during use of the in...
04/05/2005
6869216Digitizing temperature measurement system
A digitizing temperature measurement system for providing a digital temperature measurement includes an excitation source for providing switched excitation currents to two or three temperature sensing elements and an ADC circuit including a charge-balancing modulato...
03/22/2005
6853259Ring oscillator dynamic adjustments for auto calibration
An apparatus compensates for voltage and temperature variations on an integrated circuit with: a voltage sensor having a digital voltage output; a temperature sensor having a digital temperature output; a register coupled to the voltage sensor and the temperature se...
02/08/2005
6695475Temperature sensing circuit and method
A method and circuit are disclosed for measuring temperature. An exemplary embodiment of the present invention includes a first oscillator circuit that generates a first signal having a frequency that is dependent upon a sensed temperature. Difference cir...
02/24/2004
6390672Space vehicle with temperature sensitive oscillator and associated method of sensing temperature in space
A space vehicle includes a temperature sensitive oscillator carried by a housing. The temperature sensitive oscillator includes a radiation hardened inverting gain circuit, such as a comparator, able to withstand radiation in an ambient space environment,...
05/21/2002
6232618Sensor with temperature-dependent measuring resistor and its use for temperature measurement
A temperature-dependent measuring resistor is connected to a reference resistor in series, wherein this series connection is flowed through by a constant impressed current. A connection point located between the two resistors is connected to the N-input o...
05/15/2001
6115441Temperature detector systems and methods
A temperature detector comprising temperature sensing circuitry, calibration circuitry, and power regular circuitry. The temperature sensing circuitry has an output that varies with temperature to create a temperature variation. The calibration circuitry ...
09/05/2000
6074089Thermoelectric product and method
A thermoelectric cold junction compensator connector module, for use with a thermoelectric device such as a thermistor, thermocouple, or resistance-temperature device, has within a housing a cold junction compensator circuit which has means for linearizat...
06/13/2000
5899570Time-based temperature sensor system and method therefor
A time-based digital temperature sensing system has a first oscillator which is temperature sensitive. The first oscillator has a temperature coefficient which allows the first oscillator to generate an output signal which varies linearly as a function of...
05/04/1999
5775811Temperature sensor system using a micro-crystalline semiconductor thin film
A temperature sensor which can achieve accurate temperature measurement in a magnetic field and accurate temperature measurement over a broader temperature range and, further, provides a temperature sensor which, in the correction of a temperature charact...
07/07/1998
5453682Wide-range thermistor meter
A meter measures a voltage across a quasi-diode, the voltage caused by a current flowing through a resistance which changes substantially exponentially with changes in a medium being sensed. The meter comprises a logarithmic current measuring circuit coup...
09/26/1995
5381954Temperature control apparatus
A temperature control apparatus and method which utilizes a characteristic of a temperature detection device which detects temperature over a wide range of changing temperature and makes it possible to control a unit by detecting a wide range of changing ...
01/17/1995
5295746High resolution digital thermometer
A high resolution digital thermometer capable of measuring temperature differences on the order of several micro-degrees centigrade. The device includes a bridge circuit having two thermistors in series. An output of the bridge circuit feeds a signal to a...
03/22/1994
4958936Electric thermometer
An electronic thermometer includes a temperature sensing assembly incorporating a temperature sensor element, and a measuring and processing unit for determining and displaying the temperature, wherein the temperature sensing assembly and the measuring an...
09/25/1990
4844623Electronic thermometer
An electronic thermometer includes: an oscillator capable of changing from a connection between a reference and a capacitor and a resistance bulb and the capacitor. A counter is used for counting the oscillation frequency of the oscillator, and a clock is...
07/04/1989
4838707Electronic Thermometer
An electronic thermometer is provided in which the number of pulses counted in a first count and the number of pulses counted in a second count are respectively proportional to the resistance of a reference resistance and that of a thermosensing element. ...
06/13/1989
4794803Decompression and air consumption computer
An improved SCUBA diving gauge. A pictograph display is provided which has a shape which conveys the type of information being displayed. The pictograph has the shape of a SCUBA tank for a tank pressure display and the shape of a person for a display of n...
01/03/1989
4602871Thermistor thermometer
A thermistor thermometer has a reference resistance correcting section for controlling the number of pulses of an oscillation signal to a predetermined reference value. The oscillation signal is sampled in response to a measuring time signal at a referenc...
07/29/1986
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